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Chapter1 Section1

Honors Biology

Biology Study of life
Organization The high degree of order within an organism's internal and external parts and in its interactions with the living world
Cell In biology, the smallest unit that can perform all life processes; cells are covered by a membrane and contain DNA and cytoplasm
Unicellular describes an organism that consists of a single cell.
Multicellular describes a tissue, organ, or organism that is made of many cells
Organ a collection of tissues that carry out a specialized function of the body
Tissue a collection of specialized cells and cell products that perform a specific function
Organelle tiny structures that carry out functions necassary for the cell to stay alive
Biological Molecule the chemical compounds that provide physical structure and the bring about movement, energy use, and other cellular functions.
Homeostasis the maintenence of a stable level of internal conditions even though environmental conditions are constantly changing
Metabolism the sum of all the chemical reactions that take in and transform energy and materials from the environment
Cell Division the formation of two new cells from an existing cell
Development the process by which an organism becomes a mature adult
Reproduction the process of producing offspring
Gene a short segment of DNA that contaions the instructions for a certain trait
Created by: getterc14 on 2011-08-19

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